导引头偏转角度对前级战斗部威力的影响研究

Study on influence of seeker deflection angle on the power of front warhead

在攻击状态下导引头无法及时回归零位,导致导引头部件对前级战斗部射流的干扰增大,无法起爆反应装甲。为确保前级战斗部可靠起爆反应装甲,对设计的前级战斗部威力余量和导引头偏转角度对前级威力干扰情况进行分析并实施了前级战斗部垂直静破甲试验和带导引头起爆反应装甲试验。基于试验数据,利用ANSYS/LS-DYNA建立可信的仿真模型,数值模拟得到了试验条件下前级战斗部垂直静破甲侵彻深度。利用已验证的仿真模型数值模拟了导引头不同偏转角度对前级战斗部威力的影响。结果表明,在不同导引头偏转角度干扰情况下,前级射流引爆反应装甲的威力损耗是不同的,在8°~15°时威力损失最大为49.27%;威力损耗高于前级战斗部23.1%的最大威力余量,不能可靠起爆反应装甲,该研究结果可为带红外导引头的破-破型串联战斗部结构设计提供参考。

In certain ballistic conditions in the attack state,the seeker cannot return to the zero position in time,which will increase the interference of the seeker’s components to the jet of the front warhead.There is a risk that the front warhead cannot detonate the reactive armor.In order to ensure the reliable detonation of the front-stage warhead,the design of the front-stage warhead’s power margin and the seeker’s deflection angle and the front-stage power interference were analyzed,and the front-stage warhead’s vertical static armor penetration test and detonation reaction armor test with seeker were implemented.Based on the test data,a credible simulation model was established using ANSYS/LS-DYNA,and the numerical simulation obtained the vertical static armor penetration depth of the front warhead under the test conditions.The verified simulation model is used to numerically simulate the influence of the seeker’s different deflection angles on the power of the front-stage warhead.The results show that under the interference of different seeker deflection angles,the power loss of the front-stage jet detonation reaction armor is different.The maximum power loss in the range of 8°~15°is 49.27%,and the power loss is higher than that of the front-stage warhead.With a maximum power margin of 23.1%,there is a possibility that the reactive armor cannot be detonated reliably.The research results can provide a reference for the structural design of a broken-breaking tandem warhead with an infrared seeker.